User ManualTable of ContentsWARNINGS3Explanation of symbols3Exclamation symbol3Lightning symbol3Important safety instructions4Unpacking the SDA 21754Accessories5Operating voltage5Product Registrations5Introduction6Front panel6Controls6Indicators6Rear panel7Mains Connector7Loudspeaker connectors7Input connectors8Balanced inputs8Unbalanced inputs9Trigger connectors9Cleaning and maintenance9Always unplug the unit from the electrical outlet before cleaning.9Technical specifications10Audio10Protection11Mains11Trigger11Mechanical11Technical assistance12Support12Size: 639 KBPages: 12Language: EnglishOpen manual